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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "FRRouting", "vendor": "FRRouting", "versions": [{"lessThan": "4.5", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In FRRouting FRR before 8.5, the service user (usually frr) can escalate its privileges to root by monitoring the configuration directory (/etc/frr) and replacing config files upon creation with, for example, symlinks to change the ownership of arbitrary files. This is a TOCTOU Race Condition caused by a combination of touch and chown."}], "id": "CVE-2022-42917", "lastModified": "2026-09-14T00:16:55.700", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-09-14T00:16:55.700", "references": [{"source": "cve@mitre.org", "url": "https://bugzilla.suse.com/show_bug.cgi?id=1204124"}, {"source": "cve@mitre.org", "url": "https://frrouting.org/security/cve-2022-42917/"}, {"source": "cve@mitre.org", "url": "https://github.com/FRRouting/frr/commit/972cdc560e339d70c0ee5fb70ec636ab78f00bca"}, {"source": "cve@mitre.org", "url": "https://github.com/FRRouting/frr/compare/frr-8.4...frr-8.5"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "cve@mitre.org", "type": "Primary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,4.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FRRouting", "source": "cna", "vendor": "FRRouting"}, "product": "frrouting", "vendor": "frrouting"}], "created": "2026-09-14T01:15:17.226843+00:00", "updated": "2026-09-14T01:15:17.226884+00:00", "vendors": ["frrouting", "frrouting$PRODUCT$frrouting"]}